How to use encrypted conversations? It is possible to additionally secure your phone calls with the encryption function. This feature is not available for all types of connections and requires a fulfillment of a number of conditions. The encryption function is available when using the IP call The service is absolutely free for all users How do I use it? Open the Freeje app on your smartphone. Open the “Keypad” tab and choose a call type. Activate the "Encryption" feature.